Heat insulating panel for drier housings and the like



April 12, 1932. w. DREISEL 1,353,803

HEAT INSULATING PANEL FOR DRIER HOUSINGS AND THE LIKE Filed April 9, 1931 \nventor. WiN'mm Dreisd byMMz/M Atrys.

Patented A r. 12, 1932 UNITED STATES PATENT orrlca WILLIAM nnnrsF-t, or nawnnncn, tassacnusnr'rs, assrenon 'ro ANDREWS a aoomncn, me, or CAMBRIDGE, xassacnus n'r'rs, A conronmon or mss'acnu- SETTS Hair msuharme PANEL non mum nousmes'mm THE LIKE Application filed April 9, 1?31. Serial No. 528,739.

This invention relates 'to a heat-insulating panel which is suitable for use in bu1ld1ng 'the walls, floorsor roofs of drying ovens,

heated or cooled chambers and similar devices, and especially to a so-called metal panel which' comprises a metal envelope with or without a fillin of heat-insulatin material. In the following specification and claims, the above-described walls, floors, or roofs of drying ovens, heated or cooled chambers, and similar devices -will be spoken of as a housing.

structure. The

In building housings with panels of this type it has been customary to erect a su porting framework and then to secure t e ture.

My improved panels are each made with the usual metal envelope which may or may not be filled with heat-insulating material, but which is constructed with strength-giving panel flanges which stiffen the panel and give it sufficient inherent rigidity and strength so that when the panels are connected together to form the housings, the latter will be-self supporting, the panels them-. selves having all the strength necessary for supporting the structure and making it rigid thus obviating the'necessity of using any supporting framework.

In the preferred embodiment of my in vention each panel is made so that the strength giving panel flanges thereof are located atthe edges that are in engagement with or meet adjacent panels in the completed structureand these flanges are made so that they not only give the required strength to the panels but also can be used. for fastening adjacent panels together.

Inorder to give an understanding of the invention I have illustrated in the drawings a selected embodiment thereof which will now be described after which the novel features I will be pointed out in the appended claims.

Flg. 1 is a perspective somewhat diagrammatic view illustrating a housing made inaccordance with my invention;

Fig. 2 is an enlarged sectional view on the line 2--'-2, Fig. 1;

Fig. 3 is an enlarged sectional view. on the line 33, Fig. 1;

Fig. 4 is a perspective View on a reduced scale showing one o theside panels with a part removed;

' Fig. 5 is a similar view showing one of the roof panels also with a part removed; Fig. 6 is a fragmentary sectional view showing a different embodiment of the invention.

As stated above the metal panels embodying my invention are of the type comprising a metal envelope of the proper size and shape which may or may not be filled with some heat-insulating material. Some of these panels are made to be used as side wallpanels and other panels as roof panels. The panels may also be used for floors. The side wall panels, one of which is indicated at 1, Fig. 2, is made with the two opposed sheet metal sides 2 and 3 which form the side faces of the panel, which sides are spaced from each other and which are connected at the edges of the panel with sheet metal edge strips. The space between the walls 2 and 3 may be filled with some suitable heat-insulating material 4, of which mineral wool constitutes an example, or may simply be left void as an air space.

In the present embodiment of the invention the edge stripswhich \enclose the edges of each panel are formed to present the stiffening panel flanges that give stiffness and rigidityto the panel, these flanges also being'used for connecting or fastening the ad acent panels together, by means of bolts, rivets, clips or'any other suitable way.

The edge strip along the bottom ed e of each side wall panel is indicated at 5 in igs. 2 and 4, that along each side edge of each panel at 6 in Fig. 3, and that along the top edge of each side wall panel at 7 in Figs. 2

and 4. Each of thm edge strips not only encloses the edge of the panel but also provides a stiffening flange along said edge. As herein shown the bottom of each side face 2, 3 is bent outwardly to form the flange 8 which rests on the bottom edge strip 5 and the edges of this strip 5 are bent over the wall of a housing are placed edge to edge with the flanges 13 of one panel overlying those of an adjacent panel and the panels are connected together by suitable fastening devices which connect the overlying flanges. While any suitable fastening devices may be employed I prefer to use bolts 14 which extend through the overlying panel flanges 13 as shown best in Fig. 3.

The panel flanges 13 've stiffness and rigidity to the panels so t atwhen the side wall panels are placed edge to edge and are bolted together the structure is substantially as strong as if they were formed with a skeleton framework to which the panels are secured.

The edge strips 7 at the top edge of the side wall panels have the same general features as described with reference to the vertical edge strips 6 except that the top edge of each panel is preferably made at a mitre of 45 so as to fit the correspondingly-shaped edges of the roof panels 15.

The upper face of the outside sheet 2 of a panel 1 is bent outwardly to form a flange 16 and the upper edge of the inside sheet 3 is similarly bent to form a flange 17. The inside sheet 3 terminates somewhat below the outside sheet 2 and the flange 17 extends at about a 45 angle from the sheet 3. Thetop edge strip 7 has its edges 18 folded about the flanges 16 and 17 thereby producing strength-giving panel flanges 19 WhlCh extend along the upper edge of the panel on each side thereof, The inner flange 19 extends at a 45 angle while the outer flange 19 may extend at right angles to the face of the panel.

The roof panels 15 have the same general construction, as the side wall panels, that is, each roof panel has the two sheet metal side faces 20 and 2f which are spaced apart with an air space between them whichmay, if desired, be filled with the insulating material 4. The marginal. portions of the sheet metal faces 20 and 21 are bent outwardly to form flanges and the ed of each roof panel are closed by edge strips 22 similar to the edge strips 5, 6, 7 of the wall panel. The ends of each roof panel 15 are mitred as shown in Fig. 2, this being accomplished in the same way that the up r ends of the wall panels are mitred. Eac roof anel, therefore will be formed along the end; and sides with the three-ply ribs or panel flanges. The threeply flanges at the sides are indicated at 23 and those at the mitred panels at 24 and 25.

The three-ply panel flange 24 is shown as extending at an angle of 45 while the threeply panel flange 25 is illustrated as being situated in substantially the plane of the upper face of the roof panel. When the roof panels and side panels are bein assembled to build a housing the three-ply anges 25 of the roof panels will overlie the flanges 19 of the side wall panels and the angular flanges 24 of the roof panel will meet and overlie the angular flanges 19 on the inside of the side wall panel.

An advantage resulting from making the panel flanges in edge strips which are separate from but connected to the side walls of the panel is that it is possible to increase the strength of the panel by using heavier gauge metal for the edge strips and without changing the thickness of the metal of the side walls. In the case of panels having a long span the necessary strength may be given to the panels and panel flanges to support the structure without the use of a framework b simply using edge strips of the proper thic ness and depth.

' Another advantage resulting from appli-.

cants construction is that increased strength may be given to the panels by so arranging the edge strips as to provide increased depth of panel flanges without, however, changlng the thickness of the panel.

The panels are connected-b fastening the' flanges to ther by means 0 some suitable fastening evices. In the illustrated embodiment of the invention fastening devices in the form of bolts are used and as shown in Fig. 2 the overlying flanges 19 and 25 are bolted together by the bolts 26.

The side wall panels which are located at the vertical corners of the completed structure will preferably be made with the mitred or bevelled vertical edges as shown in Fig. 3 with reference to the panels 1a, 1b. In the panel 1a the vertical edge strip 6a is arranged at an angle to the side sheets 2 and 3 and similarly the vertical edge strip 66 of the panel 16 has an angular arrangement. When, therefore, these panels are assembled a mitred corner will be provided.

' The edge or end strips at the meeting edges of two panels are preferably constructed to have an interlocking engagement. For this purpose the edge str1p6 on one vertical edge of a panel may be formed with a groove 27 and the edge strip 6 on the meeting edge of the adjacent panel will be provided with i rib In order that the panels may continue to' function properl .,it is im ortantthat if in sulating materia 4 isuse it should be prevented from settling in the vertical throughout each panel. I I I One way to provide for this is to make the side sheets 2 and 3of the panels with hori- 1 zontally-extending indentations which produce horizontal ribs on the inside of the side sheets. These ribs are located opposite each other thereby providing a restricted space between each pair of opposed ribs.'

These restricted places serve to prevent the insulation 4 from settlin in the anel and thus maintain it evenl distribute without, however, reducing un uly the amount of insula'tionbetween the ribs. The ribs 30 also strengthen the panels in a lateral direction.

Where the indentations 30 are em loyed I will preferably cut out the vertical anges 11 at the edges of the side sheets 2 and 3 at the places wherein the indentations 30 occur as shown at 31 in Fig. 4.

In Fig. 6 I have shown a difi'erent way of holding the insulation in position. In this embodiment of the invention the side sheets 2 and 3 are formed with ribs 32 opposite each other thereby producing grooves on the inner sides of the sheets. Suitable strips of wire mesh or other material 33 ma be retained in said grooves thereby provi ing the means for retaining the insulation 4 in position.

I may, if desired, place spacing blocks 34 between the side walls 20 and 21 of the roof panels 15 so that if any weight is applied to any roof panel a portion thereof Will be transferred to and sustained by the lower face 20 of the panel.

With this construction the vertical panel flanges 13 of the side Wall panels perform the function of posts and thus import into' the structure all the necessary strength and rigidity to support the structure. Similarly, the panel flanges 23 of the roof. panels reinforce and strengthen the latter and perform the function of irders or beams. Thus the panel flanges 0 panel flanges of the roof panels take the place of the supporting framework which has heretofore been used in this type of housing construction.

In making the roof panels it is, of course, necessary that the flanges 23 thereof should have suflicient strength to properly support the roof and if the roof has a long span or is subjected to additional weight the edge strips of the roof flanges maybe madeof anels. and should remain evenly distributed the ,wall panels and the tofurnis the u:

adap

eluding a roof and floor and such walls or partit ons or structures are made by sim ly astemn thev appropriate panels together and wit out the necessityof erecting any framework for sup rting the panels since 7 the panel flanges o the panels provide all the strength necessary to support the structurekwithout the use of a supporting framewor If the housing to be built has a transverse dimension no greater than the length of a roof panel then a roof panel having" a mitre shape at each end may be employed. If,

for building heat-insulating walls Y or partitions or entirely'close'd structures in.-

however, the transverse dimension of the-- housin is eater than the length of one panel t en t e span across the housi from one side wall to the other would r ulre two or more connected panels. Where 's is the requirement the roof panels would be made as shown in Fig. 5 with one end mitred and the other end made in the same way as the bottom or side edges of the side wall panels thereby producing the plural-ply panel flanges 35 which ma be connected to the flanges at the end of e adjacent panel.

I claim.

1. A heat-insulating panel for use in building heat-insulating housings, said panel com-. prising two sheet .metal sides spaced from each other, edge strips closing the edges of the panel and'secured to the sides, said edge strips forming laterally-extending panel flanges at the edges of the panel which provide means for connecting adjacent panels in the completed structure and which give =1 the panel suflicient strength to make the structure self-supportin 2. A heat-insulatlng panel for use in build ing heat-insulating housings, said panel com prising two sheet metal sides spaced from each other, edge strips closing the edgeof the panel and secured to the sides, said edge strips forming a plurality of panel flanges at one or more edges of the panel, which flanges provide means for connecting adjacent panels in the completed structure and give the panel suflicient strength to make the structure self-supporting.

3. A heat-insulating panel for use in building heat-insulating housings, said panel comprising two sheet metal sides spaced from each other, the marginal portion of each being bent outwardly to form a flange, edge strips closing the edges of the panel, said edge strips overlying the flanges and being 4 housin and which give the panels suflicient strengt to make the structure self-support- 4. A heat-insulating panel for use in build- 5 ing heat-insulating housings, said panel compnsing two sheet metal sides s aced from each other, edge strips closing t e ed es of the panel and secured to the s1des,said edge strips being bent to form laterally-projecting 1 panel flanges which extend along the edges of the panel when erected position and which constitute means by which the adjacent panels of the wall are connected together and which give the panel suflicient strength to make the structure self-sup orting.

5-. A heat-insulating panel or use in building heat-insulating housings, said panel comprising two sheet metal sides spaced from each other, edge strips closing the edges of the panel and secured to the sides, said ed e strips being bent to form two oppositelyirected panel flanges at each edge, the panel flanges of one anel mating those of an adj acent panel, an means connecting the mating flanges together.

6. A heat-insulating panel for use in building heat-insulated housings, said panel comprising two sheet metal sides spaced from each other, heat-insulating material between said sides, the marginal portion of each side being bent outwardly to form a flange, edge strips closing the edges of the panel, said edge strips overlying the flanges and being connected thereto, the flanges and the portions of the edge'strips overlying them providing plural-ply panel flanges at the edges of the panel which provide means for connecting adjacent panels in an erected wall and import to the panels suflicient strength 40 to support the structure of which the wall is a part.

7. A heat-insulating panel for use in building heat-insulated housings, said panel comprising two sheet metal sides spaced from each other, the marginal portion of each side being bent outwardly to form a flange, edge strips closing the edges of the panel, the marginal portions of said edge strips being folded about said flanges thereby to produce three-ply panel. flanges at the edges of the panel which provide means for connecting adjacent panels in a completed housing and give the panels suflicient strength to make the structure self supporting. 8. A heat-insulating wall comprising a plurality of connected individual panels arranged edge to edge, each panel having two s aeed sheet metal sides, the marginal portions of the sides being bent outwardly to 60 form flanges, edge strips forming the edges of each panel, the marginal port1ons of the edge strips bein folded about said flanges thereby to provi e each panel with outwardly-directed three-ply panel flanges, ,the abut- 66 ting edges of ad acent panels having inter- I looking relation, and means to clamp together strips forming the edges of each panel, said.

edgestri s overlying the flanges and being connecte thereto, said flanges and the portions of the edge strips overlying them providing plural-ply panel'flanges at the edges of the panel, means to clam together the panel flanges of adjacent pane s with the edge strips on the meeting edges of the adjacent panels in engagement with each other, one

of said edge strips having a groove extending longitudinally thereof and the other edge strip having a rib fitting the groove.

10. A heat-insulating panel for use in building heat-insulated walls comprising a metal envelope and heat-insulating material filling 'said envelope, the latter being formed with strength-giving flanges which extend vertically of the panel when in erected position and which constitute means by which the adjacent panels of a wall are connected together and which impart to the connected panels suflicient strength to support the structure of which the walls form a part, the opposite side walls of the envelope being provided with oppositely-disposed inwardly-directed ribs forming between them constricted spaces which prevent shifting of the insulating material within the panel.

11. A heat-insulating panel for use in building heat-insulated walls comprising a metal envelope and heat-insulating material filling said envelope, the opposite walls of the envelope bein provided with oppositely-disposed inwar' ly-directed ribs forming between them constricted spaces which prevent shifting of the insulating material within the panel.

12. A housingcomprising side walls formed of individual heat-insulating panels secured together and a roof portion also formed of individual heat-insulating panels,

the roof panels having abutting relation, and

each panel having two side walls spaced from each other and edge strips closing the edges of the panel and connecting the walls, said edge strips being separate from the side walls and provided with laterally-extending panel flanges at the edges of the panel, means for fastening said. flanges together, said flanges giving the panel sufficient strength to support'the roof and thus taking the place of beams or girders for this purpose.

13. A heat-insulating panel for building heat-insulated walls, comprising a metal envelope, heat-insulating material filling said envelope, the opposite walls of said envelope being formed with grooves, and a baflle member supported in said grooves and operating to prevent shifting of the insulating material within the panel.

14. A housin having its walls formed of individual heat-lnsulating panels secured together, each panel having two side walls spaced from each other and edge strips closing the edges of the panel and secured to the sides, said edge strips forming laterally-extending panel flanges at the edges of the panel which provide means for connecting adjacent panels in the completed structure, the meeting edges of the panels at the corners of the structure having a mitred construction.

15. A heat-insulating wall comprising a plurality of connected individual panels arranged edge to edge, each panel comprising two sheet metal sides-spaced .from each other, edge strips closing the edges of thepanel and secured to the sides, said edge strips forming laterally-extending panel flanges at the edges of the panel, and means connecting the flanges of one panel to those of an adjacent panel, the edge strips at the meeting edges 'of any two adjacent panels having complemental shapes by which they are interlocked together.

In testimony whereof, I have signed my name to this specification.

WlLLIAM' DREISEL. 

